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HERBICIDE COMPOSITION AND METHOD FOR ENHANCING CHEMICAL STABILITY OF CHLORSULFURON IN HERBICIDE WETTING POWDER
HERBICIDE COMPOSITION AND METHOD FOR ENHANCING CHEMICAL STABILITY OF CHLORSULFURON IN HERBICIDE WETTING POWDER
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机译:除草剂组成和增强除草剂湿粉中氯磺隆化学稳定性的方法
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FIELD: agriculture, herbicides.;SUBSTANCE: invention relates to herbicide composition based on derivative of sulfonylurea that comprises non-ionogenic surface-active substance, lignosulfonates as anion-active surface-active substance and highly dispersed amorphous silica as a carrier. Composition comprises chlorsulfuron as derivative of sulfonylurea and triethanolamine or diethanolamine additionally, and potassium dihydrogen phosphate as a stabilizing agent in the following ratio of components, wt.-%: chlorsulfuron, 18-22; non-ionogenic surface-active substance, 3-5; potassium dihydrogen phosphate, 9-12; triethanolamine or diethanolamine, 9-11; lignosulfonates, 3-10, and highly dispersed amorphous silica, the balance. Method involves mixing components in indicated ratios by steps for 3 stages. At the 1-st stage triethanolamine or diethanolamine is applied on surface of highly dispersed amorphous silica, at the 2-d stage - chlorsulfuron, and at 3-d stage - potassium dihydrogen phosphate, lignosulfonates and non-ionogenic surface-active substance. After keeping for 24 h at the room temperature mixing products from all three stages are combined. Invention provides enhancing stability of chlorsulfuron and biological activity of preparation based on thereof. Invention is designated for applying in agriculture.;EFFECT: valuable properties of herbicide composition.;4 cl, 2 tbl, 9 ex
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机译:基于磺酰脲衍生物的除草剂组合物,其包含非离子源性表面活性物质,木质素磺酸盐作为阴离子活性表面活性物质和高度分散的无定形二氧化硅作为载体。组合物还包含氯磺隆作为磺酰脲的衍生物和三乙醇胺或二乙醇胺,以及磷酸二氢钾作为稳定剂,其比例为以下重量百分比:氯磺隆,18-22;非离子表面活性物质3-5;磷酸二氢钾9-12;三乙醇胺或二乙醇胺,9-11;木质素磺酸盐3-10和高度分散的无定形二氧化硅,余量。该方法涉及将指示比例的组分分三步进行混合。在第一阶段,将三乙醇胺或二乙醇胺施用于高度分散的无定形二氧化硅表面,在第二阶段-氯磺隆,以及在3-d阶段-磷酸二氢钾,木质素磺酸盐和非离子表面活性物质。在室温下放置24小时后,将所有三个阶段的混合产物合并在一起。本发明提供增强的氯磺隆稳定性和基于其的制剂的生物活性。发明被指定用于农业。效果:除草剂组合物的宝贵特性。4 cl,2 tbl,9 ex
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